Theoretical P-Wave Travel Times

Magnitude 2.7 SOUTHEASTERN ALASKA
Sunday, January 20, 2013 at 12:28:18 UTC

Theoretical P-wave Travel Times

This map shows the predicted (theoretical) travel times, in minutes, of the compressional (P) wave from the earthquake location to points around the globe. The travel times are computed using the spherically-symmetric IASP91 reference earth velocity model. The heavy black lines shown are the approximate distances to the P-wave shadow zone (103 to 140 degrees).

Theoretical P-Wave Travel Times
City Distance
(degrees)
Travel Time
(min:secs)
Arrival Time
UTC
Phase
Anchorage, Alaska 7.29 1:46.012:30:04.0Pn
Seattle, Washington 13.52 3:11.312:31:29.3Pn
San Francisco, California 22.46 4:58.412:33:16.4P
Los Angeles, California 27.14 5:42.512:34:00.5P
Golden, Colorado 27.37 5:44.612:34:02.6P
Duluth, Minnesota 28.97 5:58.912:34:16.9P
Phoenix, Arizona 29.80 6:06.212:34:24.2P
Albuquerque, New Mexico 30.57 6:13.012:34:31.0P
Wichita, Kansas 32.72 6:31.912:34:49.9P
St. Louis, Missouri 35.63 6:57.112:35:15.1P
Ottawa, Canada 38.54 7:21.812:35:39.8P
Honolulu, Hawaii 39.82 7:32.412:35:50.4P
Knoxville, Tennessee 40.33 7:36.712:35:54.7P
Washington, D.C. 42.42 7:53.812:36:11.8P
Brownsville, Texas 42.46 7:54.212:36:12.2P
Bangor, Maine 42.58 7:55.212:36:13.2P
Philadelphia, Pennsylvania 42.64 7:55.612:36:13.6P
New York, New York 42.70 7:56.212:36:14.2P
Boston, Massachusetts 43.09 7:59.312:36:17.3P
Mexico City, Mexico 47.44 8:33.812:36:51.8P
Miami, Florida 51.00 9:01.112:37:19.1P
Tokyo, Japan 57.21 9:46.412:38:04.4P
Bergen, Norway 58.16 9:53.112:38:11.1P
San Juan, Puerto Rico 64.3210:34.912:38:52.9P
Beijing, China 64.8910:38.612:38:56.6P
London, England 65.1410:40.312:38:58.3P
Moscow, Russia 66.3910:48.312:39:06.3P
Agana, Guam 72.5511:26.412:39:44.4P
Rome, Italy 77.1211:52.912:40:10.9P
Lima, Peru 85.1512:35.512:40:53.5P
Kathmandu, Nepal 87.5212:47.212:41:05.2P
Brisbane, Australia 103.2613:58.712:42:16.7Pdiff
Wellington, New Zealand 106.9514:15.112:42:33.1Pdiff
Nairobi, Kenya 123.0915:26.712:43:44.7Pdiff
Palmer Station, Antarctica 136.4016:25.812:44:43.8Pdiff

Travel Time Information and Calculator

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver